Which Flashcart Is The Best For Nintendo 3DS V8.1.0-19 And Best Place To Buy?

Nintendo has updated the 3DS/3DS XL firmware to version 8.1.0-19 in Europe and the US today !  Of course, flashcart owners care more about whether the flashcart in their hands was blocked by this update. According to http://www.usar4.com/dstwo-supercard-dstwo-3ds-flashcart-for-2ds-3ds-xl-3ds-dsi-ds-lite-p-2.html , it seems that all flashcart can work on the latest Nintendo system firmware , feel free to update your 3DS to the latest firmware !


Here is the official 3ds 8.1.0-19 firmware change log:
Version 8.1.0-19U available via wireless Internet connection includes the following improvements:
Improved system stability and usability:

• Further improvements to overall system stability and other minor adjustments have been made to enhance the user experience　

Every Nintendo system firmware update block any flashcarts this year , does it mean the Nintendo will block all flashcart one day ?